Firefox users should not have to switch browsers to see what their Steam items are worth. SteamHelper is available on Mozilla Add-ons as a Steam inventory helper for Firefox, with inventory value, CS2 prices, float data and trade helpers running directly on Steam Community pages.
Many Steam extensions launch on Chrome and treat Firefox as an afterthought. SteamHelper ships a dedicated Firefox build from the same codebase, so the inventory, market and trade helpers work in desktop Firefox on Windows, macOS and Linux.
Open your Steam inventory or profile in Firefox and SteamHelper adds a total inventory value, a priced-item count and price badges on CS2 items. A price sort reorders the whole inventory so your most valuable skins come first.
Float value and wear matter as much as the skin name. SteamHelper shows float data for CS2 skins in inventories and trade offers, so two copies of the same skin no longer look identical.
On the Steam Community Market, SteamHelper shows the cheapest price it knows from external CS2 marketplaces beside Steam's own price — on search results and item listing pages alike.
Trade offer pages show the value of both sides, and the inventory item panel adds Instant Sell and Quick Sell next to Steam's own Sell button. Listings still need your usual Steam confirmation.
Firefox and Chrome expose slightly different extension APIs. The core helpers are the same, but the embedded 3D skin viewer depends on a Chromium-only browser feature and is not available in the Firefox build.
Use the Add to Firefox button on this page to open SteamHelper on addons.mozilla.org.
Firefox shows the permissions and data practices SteamHelper declares. Review them and confirm the install.
Pin SteamHelper to the toolbar from Firefox's extensions menu so the SteamHelper app and its settings are one click away.
Visit your Steam inventory, the Steam Community Market or a trade offer. SteamHelper loads automatically on supported pages.
Yes. SteamHelper is a Steam inventory helper add-on on Mozilla Add-ons. It is independent and not affiliated with the Steam Inventory Helper (SIH) extension.
Yes. SteamHelper is free to install from Mozilla Add-ons, and the core inventory, price and trade helpers are free to use.
The inventory value, CS2 price, float, market comparison and trade value helpers are the same. The embedded 3D skin viewer depends on a Chromium-only API and is not available in Firefox.
No. SteamHelper never asks for your Steam password, in Firefox or any other browser.
CS2 is the main focus, with the deepest support for prices, floats and market comparison on Steam pages. Dota 2, Team Fortress 2 and Rust inventories are supported too.
Add to Firefox